Prove that the points ` hat i- hat j ,4 hat i-3 hat j+ hat k` and `2 hat i-4 hat j+5 hat k` are the vertices of a right angled triangle.

Prove that the points hat i-hat j,4hat i-3hat j+hat k and 2hat i-4hat j+5hat k are the vertices of a right angled triangle.

6).If vec PQ=3hat i+2hat j-hat k and the coordinates of P are(1,-1,2), find the coordinates of Q*(7). prove that the points hat i-hat j,4hat i-3hat j+hat k,2hat i-4hat j+5hat k are the vertices of a right angled triangle.

Show that the vectors 2 hat i- hat j+ hat k , hat i-3 hat j-5 hat k and 3 hat i-4 hat j-4 hat k form the vertices of a right angled triangle.

Show that the points A(2 hat i- hat j+ hat k), B( hat i-3 hat j-5 hat k), C(3 hat i-4 hat j-4 hat k) are the vertices of a right angled triangle.

Show that the points A(2 hat i- hat j+ hat k), B( hat i-3 hat j-5 hat k), C(3 hat i-4 hat j-4 hat k) are the vertices of a right angled triangle.

Show that the points A(2hat i-hat j+hat k),B(hat i-3hat j-5hat k),C(3hat i-4hat j-4hat k) are the vertices of a right angled triangle.

Show that the points A(2 hat i - hat j + hat k) , B(hat i - 3 hat j- 5 hat k ) and C(3 hat i - 4 hat j- 4 hat k) are the vertices of a right angled triangle.

Show that the vectors 2hat i-hat j+hat k,hat i-3hat j-5hat k and quad 3hat i-4hat j-4hat k form the vertices of a right angled triangle

Show that the points A, B, C with position vectors 2 hat i- hat j+ hat k ,\ hat i-3 hat j-5 hat k and 3 hat i-4 hat j-4 hat k respectively, are the vertices of a right angled triangle. Also, find the remaining angles of the triangle.

Show that the vectors 2 hat i - hat j + hat k , hat i - 3 hat j - 5hat k and 3hat i - 4 hat j - 4 hat k from the vertices of a right angled triangle.